Explosive-engine.



No. 884,053. PATENTED APR. 7, 1908.

H. L. F. TREBERT.

EXPLOSIVE ENGINE. APPLICATION FILED MAR. 20, 1905.

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No. 884,053. PATENTED APR. 7, 1908. H. L. P. TREBERT. EXPLOSIVE ENGINE.

APPLICATION FILED MAR. 20, 1905.

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In venfor UNITED STATES PATENT OFFICE.

HENRY L. F. TREBERT, OF ROCHESTER, NEW YORK, ASSIGNOR TOBROWNELL-TREBERT COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEWYORK.

EXPLOSIVE-ENGINE.

Specification of Letters Patent.

Application filed March 20, 1905.

Patented April 7, 1908.

Serial No. 250,908.

To all whom it may concern:

Be it known that I, HENRY L. F. TREBERT, a citizen of the United States,and a resident of Rochester, in the county of Monroe and State of NewYork, have invented certain newand useful Improvements in Explosive-Engines; and I do hereby declare the following to be a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, forming a part of this s ecification, and to the referencenumerals t ereon.

My present invention relates to gas or explosive engines and it has forits objects to provide an improved form of the supply and exhaustconduits connected to the engine cylinder andthe valves controlling thepassage of the gas therein, whereby these parts may be readily appliedand removed from the cyllnder, and also mechanism for controlling saidvalves which is capable of-being readily detached from the valves.

To these and other ends my invention consists in certain improvementsand combinations of arts, all of which will be more fully describes andthe novel features pointed out in the claims at the end of the secification.

In the drawings: Figure 1 is a ongitudinal sectional view of a multiplecylinder explosive engine illustrating the devices embodying thefeatures of my invention applied thereto. Fig. 2 is a top plan viewthereof. Fig. 3 is a cross sectional view taken on the line 3 3 ofFig. 1. Fig. 4 is a similar view taken on the line 4 4 of Fig. 1.

Similar reference numerals in the several figures indicate similarparts.

In illustrating my present invention I have shown it in connection witha multiple cylinder gas engine to which it is particularly applicable,although it may be used with equal success on an ex losive engine havinga single cylinder. T 1e engine illustrated comprises the cylinders 1, 2,3 and 4, in which are arranged the pistons 0,, b, c and (1 connected bythe usual piston rods to their respective cranks on the driving shaft 5.This shaft is supported in bearings 6 at the ends of the casing 7inclosing the cranks and which is attached by bolts 8, to the casting inwhich the several cylinders are formed, as shown in Fig. 3. Atthe rearend of the shaft is a flywheel 9 having the overhanging edge 10,provided with an inner conical surface with which cooperates thecorresponding surface on a relatively movable clutch member 15 adaptedto be operated relatively, into and out of engagement therewith, by alever 16' providing a flat horizontal surface on which other workingparts of the engine may be clamped. The head 20 and the supplementalhead 21 are connected by broad ribs 22 extending transversely of thecylinders and extending therethrough are perforations or apertures withwhich the gas supply and exhaust conduits, or pipes, 23 and 24respectively, are connected. In the present in'- stance these pipesextend horizontally over their respective cylindersat opposite sidesthereof and are provided with downwardlyextending conical ends 25 whichfit the corresponding tapered walls of the apertures, as shown in Fig.3, in which they are rigidly secured by means of bolts 26 extendingthrough perforated ears or lugs'27, on the pipes, and engaging thecylinder head 21. At the lower ends of the extensions 25 are formedvalve seats and cooperating therewith are valve heads 23 and 24 arrangedto control the passage of gas in the supply and exhaust passagesrespectively. The Valve stems 23 and 24* extend upwardly abovethe'cylinder head and project through bearings 30 on the pipes orconduits and threaded on their outer ends are spools having flanges 31which are secured in adjusted position by lock-nuts32. By thisarrangement it will be seen that the supply and exhaust pipes, and therespective va ves controlling them may be independently disconnectedfrom the engine cylinder and that by extending them laterally atdifferent sides thereof space is provided between the valve stems inwhich the controllin mechanism therefor may be located, as wil befurther described.

Mounted on the cylinder head are brackets 33, detachably connectedthereto by bolts 34, and supportin at their upper ends a station aryshaft 35 eneath which is journaled a rotary cam shaft 36.

Journaled on the shaft 33 are bell crank levers 37 and 38 provided withlaterally-extending bifurcated ends 39 and 40 engaging between theflanges of the spools on the respective valve stems 23 and 24 The otherarms of these levers, indicated by 41 and42 respectively, extenddownwardly at opposite sides of the shaft 37 and are provided withrollers 43 with which cooperate cams 44 and 45, secured to the shaft 36in such position that during each complete rotation of the latter theywill rock the levers 37 and 38 to alternately open the valve heads 23and 24 to permit the entrance of gas to the cylinder and its outwardpassage therefrom. In order to open these valves relatively to themovement of the piston in the cylinder I employ a driving connectionbe-' tween the shaft 36 and the driving shaft 5, consisting in thepresent instance of a shaft connected to the driving shaft by bevelpinions 51 and to the shaft 36 by similar pin- 10118 52. The shaft 50 issupported at its lower end in a stationary bearing 53 and at its upperend in a bearing 54 formed on one of the brackets 33. Inasmuch as thevalvecontrolling mechanism may be removed from the cylinder head, theshaft 50 is formed in two parts which are detachably connected in anysuitable manner, as for instance by means of a sleeve 55 and pins 56,one of which latter may be removed, allowing one of the sections of theshaft to be withdrawn, as will be understood.

When a. plurality of cylinders are combined as illustrated, the severalsupply pipes 23 are preferably connected to' a common header 57 and theexhaust pipes 24 are connected to a similar header 58. The brackets 33may then be arranged at each end of the engine and the shafts 33 and 36used as a common support for the valve operating levers and the camsco6perating therewith.

The sides of the cylinders are inclosed by a jacket 60 which is spacedtherefrom sufficient to form passages 59 through which air may be causedto circulate for cooling processes,

, by means of a fan 61 mounted on a'shaft 62 revoluble in bearings 63,one of which is supported by curved arms 64'extending rearwardly fromthe engine. Also mounted on the shaft 62 is a ulley 65 driven by a belt66 passing around t e fly wheel 9.

I claim as my invention:

1 1. In an explosive engine, the combination with a cylinder having ahead provided with two apertures, and "as inlet and exhaust ipes leadingover the head at opposite si es thereof in proximity thereto, andcommunicating with the apertures therein, of valves controlling saidpipes, stems thereon extending upwardly through the pipes and mechanismlocated between said pipes and coperating with the valve stems.

2. In a gas engine, the combination with a plurality of cylinders arraned one behind another, each having a hea provided with two apertures,gas inlet and outlet pipes extending horizontally toward each other overthe head of each cylinder having downwardly extending ends fitting theapertures and valves for controlling the pipes having up wardlyextending stems, of a shaft extending longitudinally of the cylindersbetween the rows of valve stems, levers carried on the shaft each havingone of its ends connected to a valve stem and the other end extendingdownwardly, a cam shaft located between the inlet and outlet pipes, camson said shaft cooperating with the depending ends of the levers andmeans for rotating the cam shaft.

3. In a gas engine, the combination with a cylinder havin a head, apiston and a driving shaft, gas 1nlet and outlet passages and va ves forcontrolling them, having stems projectin above the cylinder head, of aremovable Inacket on the latter having a laterally rojecting bearing,levers journaled on the racket and engaging the stems and a shaftjournaled on the bracket, cams on the shaft p06 erating with the leversand a shaft compose of separable parts, one of which is supported in thebearing on the bracket and is operatively connected to the cam shaft andthe other connected to the driving shaft and a detachable connectionbetween the parts of said shaft.

HENRYL. F. TREBERT. Witnesses:

G. WILLARD R1011, RUSSELL B. GRIFFITH.

